package ex01.pyrmont;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;

/**
 * 用于处理http请求
 * Created by Administrator on 2016/7/1.
 */
public class HttpServer {

	/*
	* WEB_ROOT is the directory where our HTML and other files reside
	* For this package ,WEB_ROOT is the "webroot" directory under the working directory
	* The working directory is the location in the file system
	* from where the java command was invoked.
	* */
	public static final String WEB_ROOT = System.getProperty("user.dir") + File.separator + "webroot";

	//shutdown command
	private static String SHUTDOWN_COMMAND = "/SHUTDOWN";

	//the shutdown command received
	private boolean shutdown = false;

	public static void main(String[] args) {
		System.out.println(HttpServer.WEB_ROOT);
		HttpServer server = new HttpServer();
		server.await();
	}

	public void await(){
		ServerSocket serverSocket = null;
		int port = 8080;
		try {
			serverSocket = new ServerSocket(port,1, InetAddress.getByName("127.0.0.1"));
		} catch (IOException e) {
			e.printStackTrace();
			System.exit(1);
		}
		//Loop waiting for a request
		while (!shutdown){
			Socket socket = null;
			InputStream input = null;
			OutputStream output = null;
			try {
				socket = serverSocket.accept();
				input = socket.getInputStream();
				output = socket.getOutputStream();
				//create Request object and parse
				Request request = new Request(input);
				request.parse();
				//create Response Object
				Response response = new Response(output);
				response.setRequest(request);
				response.sendStaticResource();
				//Close the socket
				socket.close();
				//check if the previous URI is shutdown command
				shutdown = request.getUri().equals(SHUTDOWN_COMMAND);

			} catch (IOException e) {
				e.printStackTrace();
				continue;
			}
		}

	}


}
